Comparing Costco, Walmart, and Amazon: Best Stock Investment for 2026

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Core Facts on Retail Giants

Costco Wholesale, Walmart, and Amazon are prominent players in retail, each adopting unique business models. As of fiscal Q3 2026, Costco reported a U.S. and Canada membership renewal rate of 92.2%, while its worldwide rate stood at 89.7%. In the same quarter, e-commerce traffic for Costco increased by 37%, contributing to a 21.5% rise in digitally enabled comparable sales. Meanwhile, the company’s stock has appreciated over 150% in the past five years and boasts a forward price-to-earnings ratio of 43.1.

Walmart, the only Dividend King among the three, marked 53 consecutive years of dividend increases. Its stock has also risen over 150% in five years, supported by technological advancements and its Walmart+ membership. Furthermore, in Q1 2026, Amazon reported a 28% increase in AWS revenue, totaling $37.6 billion, marking its fastest growth in 15 quarters. This positions Amazon favorably in cloud services while its stock remains subject to tech market volatility.

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